Peel the bananas and slice them first in half and then slice them in half lengthwise.

Heat a skillet over medium heat.

Add the butter and melt.

Once melted, add the brown sugar, vanilla and cinnamon. Stir together until it starts to become sticky and caramel-like.

Add the walnuts and bananas and fold them into the mixture.

Simmer for a minute or two to slightly soften the bananas.

Turn off the heat and add the rum. With a long match, light the pan mixture on fire.

It will further caramelize the banana mixture and within a minute the alcohol will burn off and the fire will go out on its own.

Serve immediately over vanilla ice cream!